Precalculus (6th Edition) Blitzer

Published by Pearson
ISBN 10: 0-13446-914-3
ISBN 13: 978-0-13446-914-0

Chapter 3 - Section 3.4 - Exponential and Logarithmic Equations - Exercise Set - Page 491: 128


Solution set = $\displaystyle \{\frac{11}{3}\}$

Work Step by Step

Graph the LHS function and the RHS function in the same window. Use TRACE, INTERSECT, or a similar function of your graphing device to find the intersection points. The solution set consists of the x-coordinates of the intersection points. The device gives $(3.667,2)$ as the intersection. This has been rounded, so we check $\displaystyle \frac{11}{3}$ and find that it is the solution. Solution set = $\displaystyle \{\frac{11}{3}\}$
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